Nissan Frontier D22. Manual - part 514

IACV-FICD SOLENOID VALVE

EC-1159

[VG33E]

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Wiring Diagram

UBS00DQQ

BBWA1099E

EC-1160

[VG33E]

IACV-FICD SOLENOID VALVE

Specification data are reference values and are measured between each terminal and ground.

CAUTION:

Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than the ECM terminals, such as the ground.

 *: Any mode except OFF, ambient air temperature is above 25

°C (77°F).

Diagnostic Procedure

UBS00DQR

1. 

CHECK OVERALL FUNCTION

1.

Start engine and warm it up to normal operating temperature.

2.

Check idle speed.

If NG, adjust idle speed.

3.

Turn air conditioner switch and blower fan switch ON.

4.

Recheck idle speed.

OK or NG

OK

>> INSPECTION END.

NG

>> GO TO 2.

2. 

CHECK AIR CONDITIONER FUNCTION

Check if air conditioner compressor functions normally.

OK or NG

OK

>> GO TO 3.

NG

>> Refer to 

MTC-22, "Symptom Table"

 .

TER-

MINAL 

NO.

WIRE 

COLOR

ITEM

CONDITION

DATA (DC Voltage)

9

B/Y

Ambient air temperature 
switch

[Engine is running]

●

Idle speed

●

Ambient air temperature is above 25

°C (77°F)

●

Air conditioner is operating

0V

[Engine is running]

●

Idle speed

●

Ambient air temperature is below 19

°C (66°F)

●

Air conditioner is operating

BATTERY VOLTAGE
(11 - 14V)

[Engine is running]

●

Idle speed

●

Ambient air temperature is below 19

°C (66°F)

●

Air conditioner is not operating

Approximately 5V

12

P

Air conditioner relay

[Engine is running]

●

Both A/C switch and blower switch are ON*

0 - 1V

[Engine is running]

●

A/C switch is OFF

BATTERY VOLTAGE
(11 - 14V)

750

±50 rpm (in P or N position)

850 rpm or more (in P or N position)

SEF742U

IACV-FICD SOLENOID VALVE

EC-1161

[VG33E]

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3. 

CHECK IACV-FICD SOLENOID VALVE POWER SUPPLY CIRCUIT

1.

Turn air conditioner switch and blower fan switch OFF.

2.

Stop engine.

3.

Disconnect IACV-FICD solenoid valve harness connector.

4.

Start engine, then turn air conditioner switch and blower fan
switch ON.

5.

Check voltage between terminal 2 and ground with CONSULT-II
or tester.

OK or NG

OK

>> GO TO 5.

NG

>> GO TO 4.

4. 

DETECT MALFUNCTIONING PART

Check the following.

●

Harness connectors F38, F102

●

Harness for open or short between IACV-FICD solenoid valve and harness connector F27

>> Repair harness or connectors.

5. 

CHECK IACV-FICD SOLENOID VALVE GROUND CIRCUIT-I

1.

Turn ignition switch OFF.

2.

Disconnect ambient air temperature switch harness connector.

3.

Check harness continuity between ambient air temperature switch terminal 1 and body ground.
Refer to Wiring Diagram.

4.

Also check harness for short to power.

OK or NG

OK

>> GO TO 6.

NG

>> Repair open circuit or short to power in harness or connectors.

LEC515

 Voltage: Battery voltage

SEF680W

Continuity should exist.

EC-1162

[VG33E]

IACV-FICD SOLENOID VALVE

6. 

CHECK IACV-FICD SOLENOID VALVE GROUND CIRCUIT-II

1.

Check harness continuity between ambient air temperature
switch terminal 2 and IACV-FICD solenoid valve terminal 1.

2.

Also check harness for short to ground and short to power.

OK or NG

OK

>> GO TO 8.

NG

>> GO TO 7.

7. 

DETECT MALFUNCTIONING PART

Check the following.

●

Harness connectors F38, F102

●

Harness connectors F36, M81

●

Harness connectors M65, E43

●

Diode-3

●

Harness for open or short between IACV-FICD solenoid valve and ambient air temperature switch

>> Repair open circuit or short to ground or short to power in harness or connectors.

8. 

CHECK IACV-FICD SOLENOID VALVE

1.

Disconnect IACV-FICD solenoid valve harness connector.

2.

Check for clicking sound when applying 12V direct current to ter-
minals.

3.

Check plunger for seizing or sticking.

4.

Check for broken spring.

OK or NG

OK

>> GO TO 9.

NG

>> Replace IACV-FICD solenoid valve.

9. 

CHECK INTERMITTENT INCIDENT

Refer to 

EC-696, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"

 .

>> INSPECTION END.

Continuity should exist.

PBIB1432E

SEF682W

SEF097K